Mephisto is a fictional character that appears in comic books published by Marvel Comics. The character first appears in Silver Surfer #3 (Dec. 1968) and was introduced in the Marvel universe by Stan Lee and John Buscema, based on Mephistopheles – a demon character from the Faust legend, who often went by Mephisto as a nickname.Debuting in the Silver Age of comic books, the character has appeared in over four decades of Marvel continuity.